Mirror base



FIG. 1 is a first side view of a mirror base according to the presentinvention, the opposite side being symmetric therewith;

FIG. 2 is a second side view, rotated ninety degrees from the first sideview, of the mirror base of FIG. 1, the opposite side being symmetrictherewith;

FIG. 3 is a top view of the mirror base of FIG. 1; and,

FIG. 4 is a bottom view of the mirror base of FIG. 1.

The broken lines identify objects that form no part of the claimeddesign.

The ornamental design for a mirror base, as shown and described.